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Basis of Presentation and Recently Issued Accounting Pronouncements (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Debt Instrument [Line Items]        
Other fee income $ 1,018 $ 1,106 $ 3,212 $ 3,187
Depreciation and amortization $ 23,941 21,106 $ 69,815 62,674
Scenario, Adjustment        
Debt Instrument [Line Items]        
Depreciation and amortization   $ 304   778
Scenario, Adjustment | Discontinued Operations        
Debt Instrument [Line Items]        
Depreciation and amortization       $ 60